Precision Twist Drill 5997435 7/32 in Taper Length Drill Bit

Product Description

The PRECISION TWIST DRILL 5997435 is a taper length drill bit engineered for demanding metal-cutting applications across a wide range of materials. Part of the QC91P series, this high speed steel (HSS) bit features a 135-degree split point that reduces walking and allows self-centering entry without a center punch. The parabolic flute geometry promotes fast chip evacuation and cooler cutting, reducing the need for frequent retraction. With a 7/32-inch diameter and a bright, uncoated finish, it is suited for general-purpose drilling in both production and field service environments. Installed by machinists, pipefitters, and trade professionals who require consistent performance in ferrous and non-ferrous metals.

This taper length bit is designed for drilling into a broad spectrum of materials including alloy steel, carbon steel, stainless steel, hardened steel, tempered steel, cast iron, malleable iron, aluminum, aluminum alloy, brass, bronze, copper, nickel, titanium, titanium alloy, magnesium, magnesium alloy, and graphite. The extended flute length of 3-5/8 inches relative to the 7/32-inch diameter gives it reach for deeper holes than standard jobber-length bits, making it practical for structural, mechanical, and fabrication drilling tasks.

Key Features

• 135-degree split point for self-centering entry and reduced thrust
• Parabolic flute profile accelerates chip removal and reduces heat buildup
• Web-thinned, tapered web construction for improved cutting efficiency in heavy-duty applications
• High speed steel construction rated for use on hardened steel, stainless, titanium, and non-ferrous metals
• Bright uncoated finish allows easy visual inspection of wear
• Right-hand cut with straight cylindrical shank for compatibility with standard drill chucks
• Meets ANSI standards for taper length drill geometry

Compatibility

Designed as a general-purpose taper length drill bit compatible with any standard drill press, hand drill, or magnetic drill equipped with a chuck sized for a 0.2188-inch straight cylindrical shank. Suitable for use without coolant-through requirements.

Installation Notes

Secure the shank fully in the drill chuck before operation and verify concentricity to prevent premature edge wear. When drilling hardened or stainless steel, use a cutting fluid to extend tool life and reduce heat. Reduce feed pressure when breaking through to avoid grabbing. Replace or resharpen the bit when thrust increases noticeably or when the point shows visible wear, as a dull split point will work-harden stainless and hardened steel surfaces.